A recruitment site for Akan Kyouritsu Doken, a civil engineering company founded in 1928 in Kushiro, Hokkaido. The idea: land contours and sea-floor contours form one continuous landscape, and every job sits on it. Eastern Hokkaido is rebuilt in WebGL from real elevation, ocean-depth and land-use data. On scroll, the camera flies from farmland canals to city roads, a kelp-restoring coast and a snowy night. Off Cape Erimo, two amphibious backhoes, the company's own machines rebuilt in code, clear away the seaweed that crowds out kelp, looping through dig, swing and dump. Experience stacks up in 20 m terrain layers, and 10,000 particles of light join hands at the entry. No imported 3D models, just heightmaps, shaders and code, light enough for phones.